Regeneration of pump casings

Regeneration of pump casings

Two casings for regeneration, which consisted in turning the internal diameter (about 300mm), and then mounting the stainless steel lining (bushings). An interesting fact is that the sleeves-linings were made of a typical pipe with a slightly larger diameter, by cutting an appropriate part of the pipe circumference along a radial line. This allowed the cladding to fit tightly inside the casings. Tooling was also made for assembly, which allowed to close the circumference of the cladding and push it inside the casing. The effect meets the customer’s expectations.

Modernisation of turboset in Turkey

Modernisation of turboset in Turkey

At the power plant located on the Turkish Riviera, GE has modernized the turbosets, consisting in the complete replacement of high- and medium-pressure modules. The remaining elements of the turbine had to be adapted to the new modules. Our scope of work was relatively wide, including supervision of the work carried out by a local subcontractor. Milling the foundation for sliding plates Grooves of bearings 1 and 2 Installation of the insertion Supervision of the machining of the bottom parts of the bearing pedestals. Bearing grooves No. 3,4,5, and 6 Machining the casing for blade carriers

Drilling in Iraq

Drilling in Iraq

We finished the work on the modernization of the gas turbine, where our task was a.o. very difficult drilling for the casings’ retaining elements. The problem we had to face is the difficult position of drilling – on the edge between two different materials, with a step or drilling into the halve of the old hole. Since the holes were arranged around the perimeter, some of them were also drilled in the ceiling position. Drilling diagram and example of the appearance of the hole before drilling Drilling in the ceiling position The finished hole and the dowel Punching a new hole

Modernization of the turbine casing screw connection

Modernization of the turbine casing screw connection

Our client has decided to modernize the screw connection of the turbine flanges. In place of the traditional connection with stud bolts crewed into the lower half of the cosing, it was decided to make through holes with a slightly larger diameter than the original solution. In the first step, due to the shape of the casting, a feasibility study had to be carried out – for this purpose, a 3D scan of the flanges was performed, with a particular focus on the radii of the transition to the casing area. The result is a three-dimensional model of the casing’s fragment within the area of planned upgrade. On the same […]

PRODUCTION OF FASTENERS AND SPARE PARTS

PRODUCTION OF FASTENERS AND SPARE PARTS

Initially only for our own, more and more and more often, we produce special fasteners (not standardized). In our case, our own needs mean mostly customizing mobile equipment to specific cases of service – adaptation the machine to the workpiece, clamping of machining tools, supports or additional bearings.  It turned out that there is a demand for such items, usually previously not foreseen, during dismantling or after treatment. A typical example of such a situation are works by flange connections, when it turns out that some of the screws are simply stuck, and hence, must be destroyed when dismantling. To meet the expectations, having gathered a lot of experience, we are now able to offer a more comprehensive approach to widely understood screw connections, ranging from dismantling, including disassembly of the destroyed (rough, worn off, blocked in any way) the screws and studs, through correction of geometry and surface quality of the connection, the correction of damaged […]